E-ELT - Science and Technology Facilities Council
... • explore the nature and distribution of dark matter and dark energy, thought to make up most of our Universe, but as yet not directly observed or understood • measure changes in the expansion rate of the Universe, without the need to make assumptions such as a standard luminosity for distant supern ...
... • explore the nature and distribution of dark matter and dark energy, thought to make up most of our Universe, but as yet not directly observed or understood • measure changes in the expansion rate of the Universe, without the need to make assumptions such as a standard luminosity for distant supern ...
November 2014 - Hermanus Astronomy
... Belgian team selects the best WASP candidates by obtaining high-quality data of transit light curves. Geneva Observatory astronomers then show that the transiting body is a planet by measuring its mass, which they do by detecting the planet's gravitational tug on the host star. The collaboration has ...
... Belgian team selects the best WASP candidates by obtaining high-quality data of transit light curves. Geneva Observatory astronomers then show that the transiting body is a planet by measuring its mass, which they do by detecting the planet's gravitational tug on the host star. The collaboration has ...
angles_telescopes
... nearest star to the angular size of the Sun? – nearest star, alpha Cen, has physical diameter similar to Sun but a distance of 1.3 pc (4.3 light years), or about 1.5x1013 km from Earth – Sun is 1.5x108 km from Earth – => required magnification is 100,000 ...
... nearest star to the angular size of the Sun? – nearest star, alpha Cen, has physical diameter similar to Sun but a distance of 1.3 pc (4.3 light years), or about 1.5x1013 km from Earth – Sun is 1.5x108 km from Earth – => required magnification is 100,000 ...
Lecture 12
... •Chromatic aberration blurs color photographs taken using refractor telescopes •In a reflector, light is focused to the same point (the focal point) regardless of its color ...
... •Chromatic aberration blurs color photographs taken using refractor telescopes •In a reflector, light is focused to the same point (the focal point) regardless of its color ...
I. Reflective and Refractive Telescopes II. Telescope Optics III
... Hetero-chromatic (affect multiple wavelength light), on- and off- axis ...
... Hetero-chromatic (affect multiple wavelength light), on- and off- axis ...
Classification and structure of galaxies
... • Stars and star clusters – microwaves generated by water from H II regions (called the MASER technique) traces the Milky Way’s spiral arms • Nebulae – infrared light (detected by the Spitzer Space Telescope) shows the outline of the heat generated by the bar • Other galaxies (analogous structure as ...
... • Stars and star clusters – microwaves generated by water from H II regions (called the MASER technique) traces the Milky Way’s spiral arms • Nebulae – infrared light (detected by the Spitzer Space Telescope) shows the outline of the heat generated by the bar • Other galaxies (analogous structure as ...
Avoiding Runons Ex 2
... Avoiding Run-On Sentences: Practice Exercise I Each of the following is a run-on sentences. From the group of three sentences that follows, select the group of words that corrects the run-on. 1. Our solar system has nine major planets only one is known to have intelligent life. Our solar system has ...
... Avoiding Run-On Sentences: Practice Exercise I Each of the following is a run-on sentences. From the group of three sentences that follows, select the group of words that corrects the run-on. 1. Our solar system has nine major planets only one is known to have intelligent life. Our solar system has ...
IMAX - Teacher Guide - Hidden Universe 3D
... one of the biggest optical telescopes in the world, uses an eight-metre mirror that acts like a giant “light bucket,” capturing as much light as possible during a night’s observation, as featured in Hidden Universe. (Credit: Russell Scott) 2: The cosmic glow of the Carina Nebula, which contains two ...
... one of the biggest optical telescopes in the world, uses an eight-metre mirror that acts like a giant “light bucket,” capturing as much light as possible during a night’s observation, as featured in Hidden Universe. (Credit: Russell Scott) 2: The cosmic glow of the Carina Nebula, which contains two ...
08-03-17 - Institute of Astronomy
... created when a parent asteroid breaks into two pieces, for example due to the impact of another body or because it is spinning too fast. The two fragments are not gravitationally linked but they follow similar orbits around the Sun. From a reconstruction of their previous orbits, astronomers have de ...
... created when a parent asteroid breaks into two pieces, for example due to the impact of another body or because it is spinning too fast. The two fragments are not gravitationally linked but they follow similar orbits around the Sun. From a reconstruction of their previous orbits, astronomers have de ...
Maksutov
... for aberrations the secondary mirror reflects the light coming from the primary mirror through a hole of the primary mirror. This light is then focused near the back of the telescope, where normally an eyepiece or the CCD camera is installed. There is no need of a spider holding the secondary mirror ...
... for aberrations the secondary mirror reflects the light coming from the primary mirror through a hole of the primary mirror. This light is then focused near the back of the telescope, where normally an eyepiece or the CCD camera is installed. There is no need of a spider holding the secondary mirror ...
The Warrumbungle Observer The Warrumbungle Observer
... its brightness (Mag 0 is equivalent to the brightest star in the sky, the smaller the number the brighter it is), its position (Alt is the number of degrees above the horizon it is, 90 degrees is straight over head). ...
... its brightness (Mag 0 is equivalent to the brightest star in the sky, the smaller the number the brighter it is), its position (Alt is the number of degrees above the horizon it is, 90 degrees is straight over head). ...
The Night Sky May 2016 - Bridgend Astronomical Society
... The constellation Leo is now in the south-eastern sky in the evening. One of the few constellations that genuinely resembles its name, it looks likes one of the Lions in Trafalgar Square, with its mane and head forming an arc (called the Sickle) to the upper right, with Regulus in the position of it ...
... The constellation Leo is now in the south-eastern sky in the evening. One of the few constellations that genuinely resembles its name, it looks likes one of the Lions in Trafalgar Square, with its mane and head forming an arc (called the Sickle) to the upper right, with Regulus in the position of it ...
Exploration géochimique du Système Solaire
... Large separations Δν=νn+1,0 –νn,0 and small separations δν=δν02=νn,0 –νn-1,2 are given here at their νmax’s (where the observed pulsation spectrum is expected to be) ...
... Large separations Δν=νn+1,0 –νn,0 and small separations δν=δν02=νn,0 –νn-1,2 are given here at their νmax’s (where the observed pulsation spectrum is expected to be) ...
ASTRONOMY 0089: EXAM 1 Class Meets M,W,F, 1:00 PM Feb 12
... a. there is a cold gas between us and the light source. b. an atom undergoes a collision. c. the spectrum is that of a perfect black body. d. the energy at that wavelength is higher than at neighboring wavelengths. e. the energy at that wavelength is lower than at neighboring wavelengths. 17. The da ...
... a. there is a cold gas between us and the light source. b. an atom undergoes a collision. c. the spectrum is that of a perfect black body. d. the energy at that wavelength is higher than at neighboring wavelengths. e. the energy at that wavelength is lower than at neighboring wavelengths. 17. The da ...
Day 9 - Ch. 4 -
... A G-Type Star is similar to our Sun. The evolution is shown during an imaginary trek through space. At the end of the red giant stage, the core is small, the envelope huge, and the outcome depends on the total mass of the star. ...
... A G-Type Star is similar to our Sun. The evolution is shown during an imaginary trek through space. At the end of the red giant stage, the core is small, the envelope huge, and the outcome depends on the total mass of the star. ...
Life Cycle of Stars - Faulkes Telescope Project
... is not strong enough to equalize the inward gravitational force, so the star begins to collapse. Most stars (including our Sun) will blow away their outer layers to form a planetary nebula; their cores remain behind and live as White Dwarfs. No nuclear reactions occur in a white dwarf so they spend ...
... is not strong enough to equalize the inward gravitational force, so the star begins to collapse. Most stars (including our Sun) will blow away their outer layers to form a planetary nebula; their cores remain behind and live as White Dwarfs. No nuclear reactions occur in a white dwarf so they spend ...
Powerpoint file
... lists this as an A5 V star, but it is a g Dor variable which have spectral types F0-F2. Spectra confirm that it is F-type 1SIMBAD ...
... lists this as an A5 V star, but it is a g Dor variable which have spectral types F0-F2. Spectra confirm that it is F-type 1SIMBAD ...
Galaxies - schoolphysics
... 25,000 million years to fly from one side to the other. Even light takes 100,000 years to make the trip across our galaxy. This means that the light that we see from the stars on the other side of the galaxy started out on its journey over eighty thousand years ago! If we could shrink the whole sola ...
... 25,000 million years to fly from one side to the other. Even light takes 100,000 years to make the trip across our galaxy. This means that the light that we see from the stars on the other side of the galaxy started out on its journey over eighty thousand years ago! If we could shrink the whole sola ...
Hubble Offers a Dazzling View of Necklace Nebula
... miles wide and dotted with pearls of glowing gas. The object is the glowing remains of an ordinary, Sun-like star, called a planetary nebula. What’s in a name? The planetary nebula name is a misnomer because these objects have nothing to do with planets. They acquired their name more than 100 years ...
... miles wide and dotted with pearls of glowing gas. The object is the glowing remains of an ordinary, Sun-like star, called a planetary nebula. What’s in a name? The planetary nebula name is a misnomer because these objects have nothing to do with planets. They acquired their name more than 100 years ...
a light year is
... 28. When looking down upon the Earth from the North Celestial Pole, in what direction does it rotate? a) counter clockwise, b) clockwise, c) cannot determine, d) does not appear to rotate 29. At anyone given time, how much of the Moon is illuminated by the Sun? a) 1/2, b) all, c) 1/4, d) depends on ...
... 28. When looking down upon the Earth from the North Celestial Pole, in what direction does it rotate? a) counter clockwise, b) clockwise, c) cannot determine, d) does not appear to rotate 29. At anyone given time, how much of the Moon is illuminated by the Sun? a) 1/2, b) all, c) 1/4, d) depends on ...
Synopsis by Rachel Haynes
... you can tell that there are actually 2 stars there, perhaps it looks like just one big blob, then it really isn't doing what you want. This and other things must be taken into account when choosing and designing a telescope. Above was an example of the resolution of a telescope. Resolution can be de ...
... you can tell that there are actually 2 stars there, perhaps it looks like just one big blob, then it really isn't doing what you want. This and other things must be taken into account when choosing and designing a telescope. Above was an example of the resolution of a telescope. Resolution can be de ...
Lecture 37: The Pale Blue Dot
... planets around other stars, but the hunt is on… The ultimate goal is to find Earth-like planets in the Habitable Zones of their parent stars. The RV method is currently insensitive to Earth-mass planets. Transit methods are most sensitive to large planets, but the Kepler mission launched in 2008 is ...
... planets around other stars, but the hunt is on… The ultimate goal is to find Earth-like planets in the Habitable Zones of their parent stars. The RV method is currently insensitive to Earth-mass planets. Transit methods are most sensitive to large planets, but the Kepler mission launched in 2008 is ...
Supernovae – the biggest bangs since the Big Bang
... However, if matter passes to the white dwarf star and it becomes more than 40 percent “heavier” than the Sun, it will make a huge explosion. The entire white dwarf will explode with the energy of four billion Suns. This is called a “white dwarf supernova” (also known as a “Type Ia supernova”). Im ...
... However, if matter passes to the white dwarf star and it becomes more than 40 percent “heavier” than the Sun, it will make a huge explosion. The entire white dwarf will explode with the energy of four billion Suns. This is called a “white dwarf supernova” (also known as a “Type Ia supernova”). Im ...
QUINN_2004 - Armagh Observatory
... 1930+2752, a Fourier transform is needed. However, in order to complete this transform, I need data concerning the change in magnitude of KPD 1930+2752. I obtained this data though a process called high-speed photometry. In this process, a large number of short duration exposures are taken of KPD 19 ...
... 1930+2752, a Fourier transform is needed. However, in order to complete this transform, I need data concerning the change in magnitude of KPD 1930+2752. I obtained this data though a process called high-speed photometry. In this process, a large number of short duration exposures are taken of KPD 19 ...
Spitzer Space Telescope
The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space observatory launched in 2003. It is the fourth and final of the NASA Great Observatories program.The planned mission period was to be 2.5 years with a pre-launch expectation that the mission could extend to five or slightly more years until the onboard liquid helium supply was exhausted. This occurred on 15 May 2009. Without liquid helium to cool the telescope to the very low temperatures needed to operate, most of the instruments are no longer usable. However, the two shortest-wavelength modules of the IRAC camera are still operable with the same sensitivity as before the cryogen was exhausted, and will continue to be used in the Spitzer Warm Mission. All Spitzer data, from both the primary and warm phases, are archived at the Infrared Science Archive (IRSA).In keeping with NASA tradition, the telescope was renamed after its successful demonstration of operation, on 18 December 2003. Unlike most telescopes that are named after famous deceased astronomers by a board of scientists, the new name for SIRTF was obtained from a contest open to the general public.The contest led to the telescope being named in honor of astronomer Lyman Spitzer, who had promoted the concept of space telescopes in the 1940s. Spitzer wrote a 1946 report for RAND Corporation describing the advantages of an extraterrestrial observatory and how it could be realized with available or upcoming technology. He has been cited for his pioneering contributions to rocketry and astronomy, as well as ""his vision and leadership in articulating the advantages and benefits to be realized from the Space Telescope Program.""The US$800 million Spitzer was launched from Cape Canaveral Air Force Station, on a Delta II 7920H ELV rocket, Monday, 25 August 2003 at 13:35:39 UTC-5 (EDT).It follows a heliocentric instead of geocentric orbit, trailing and drifting away from Earth's orbit at approximately 0.1 astronomical unit per year (a so-called ""earth-trailing"" orbit). The primary mirror is 85 centimeters (33 in) in diameter, f/12, made of beryllium and is cooled to 5.5 K (−449.77 °F). The satellite contains three instruments that allow it to perform astronomical imaging and photometry from 3 to 180 micrometers, spectroscopy from 5 to 40 micrometers, and spectrophotometry from 5 to 100 micrometers.